ARRY'S GOT A CAULKER OF A PLAYER: Redknapp signs the former Spurs man to beef up QPR's defence [GETTY]

Caulker joins Rio Ferdinand at Loftus Road, the former Manchester United man joining on a free, as Redknapp strives to build a squad strong enough to cope with the demands of the Barclays Premier League.

And after steering QPR back to the top flight at the first attempt, Redknapp plans to bring in up to five more players before the transfer window slams shut.

“When good players like Steven become available, who can come in and have a real impact, you've got to try and get them”

Harry Redknapp

Delighted with Caulker's capture, Redknapp said: "Steven's a top player, so we're delighted to have him at QPR.

"I know the ability he has and I think it's an important signing for the club - for the here and now, and for the future.

"He's young, a good age. He's already a fine player but he has so much more potential.

"When good players like Steven become available, who can come in and have a real impact, you've got to try and get them.

"I'm sure he will come in and show exactly what he's capable of - he's got everything to be a top, top centre-half, so I couldn't be more pleased to have him."

Caulker, who was handed his debut for former club Spurs when Redknapp managed at White Hart Lane, said: "Harry was a big factor for me, having worked with him at Tottenham.

"Being able to play with Rio was also a big draw. He has been a role model of mine for years, along with Ledley King. To have the opportunity to play alongside him was something I felt I couldn't miss out on."